Re: [DMCForum] Re: damnit to hell (my poor engine)

[Marc Levy <malevy_nj@xxxxxxxxx>]

See Below.
--- cartermartin <cartermartin@xxxxxxxxx> wrote:

> 
> I have some more questions:
> 
> 1. How does one properly bleed the cooling system on
> one of these?

There is a bleed screw on the thermostat housing. 
Crack it open and put a hose on it, let the fluid run
back in to the expansion tank (well, on a DMCH..  Dont
know if Volvo has an expansion tank or overflow
tank??)

> 2. Would a compression test reveal a faulty head
> gasket? I have good 
> compression on all 6 cylinders (180-185psi, maybe
> too good?). 

I dont know the compression of your version of the
PRV...  But a compressions test may or may not reveal
a head gasket problem.  Did you overheat the engine at
some point??  Overheating is the best method to kill a
PRV.
 
> 3. Would a head gasket that is bad or heading that
> way cause excess 
> pressure in the cooling system? 

If your "radiator cap" is working properly, no...  A
bad head gasket will usually show itself by "missing
coolant", that is you have to keep adding coolant but
see no leaks.

> The engine is running strong but I have had a couple
> high 
> temp 'incidents'. And chocolate milkshake in the oil
> filler which was 
> there before though.

Milkshake??  This is a BAD thing.  If you have coolant
in the oil, then you may have a blown head gasket.

If you build pressure quickly in the cooling system,
then you likely have a bad head gasket.

Did you test your radiator cap?



            
__________________________________ 
Yahoo! Mail Mobile 
Take Yahoo! Mail with you! Check email on your mobile phone. 
http://mobile.yahoo.com/learn/mail

---

Yahoo! Groups Links

• To visit your group on the web, go to:
  http://groups.yahoo.com/group/DMCForum/
   
• To unsubscribe from this group, send an email to:
  DMCForum-unsubscribe@xxxxxxxxxxxxxxx
   
• Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.